Rotary pump or motor



WALDEMARE. MAYER, oE EHILADRLIHIA, PENNSYLVANIA, A'ssIGNoR Tol TAYIoR- WHARTON IRON AND STEEL COMPANYOE HIGH BRIDGE, NEW JERsE'Y, A coRro- RATION OE NEW JERSEY.

' ROTARY PUMP OR MOTOR.

Tovall 'whom it may concern.' l

Be it known that I, WALDEMAR F. MAYER,

v, a citizen of Switzerland, residing at Philadelphia, in the county of Philadelphial and State of Pennsylvania, have invented cer-- tainjneW and useful Improvements in Ro-r tary Pumps or Motors,-of which the following is a specification.'

' This invention relates to an improvement in fluid Itransmissions, wherein a correct 'relative position of the 'pist s and eccentric 1s Y maintained by'centrifuga force;tl'1ere'is no side thrust on the pistons;' and automatic forcedlubrication oflall Working'parts is obtained.

The inventionisi'llustrated in eaccomvprisesa housing l formed in tvvo sections,

'f tatable therein. Hollow pistons 9 vvorkl and having center bearing openings 2 and 3.' A valve 4 is arranged in one center bearing, as 2, and keyed tothe housing, sov that the valve is ixedrelative to the casing.'

A cylinder'carrying body 5 is rotatably jmounted on the valve, and formed to pro- ,Y *.30

vide radial cylinders G, having ports 7. The body 5' has a shaft extension 8 mounted in the opening 3 of the housing, and freely rothe cylinders 6, the -open'outer ends ofthese pistons being fclosed in operation by disks .10,'seated in appropriately formed recesses in the adjustable split ring 11./This ring is formed in tWo sections, each of substanv tial cup form, with the respective edge flanges in contact, except for a restricted opening 12 therebetween. Bolts 13 secure the sections of the ring in ring formation,

v and the recesses for thedisks 410 are formed in the circumferential riml thusI provided. If desired such 'rim may be 'formed With The split ring' 11 is lformed with center line openings 15 to., encircle the valve, the

openings being materiallyv largerI than the diameter of the valve to permitof the'ad- 'fjustment of the ring for eccentricity. An

adjusting ring '16, preferably-- in closely connected sections, svformed With `center line Application led November 12, 1919. Serial N'o. 337,420.

Specification of'Letters Patent. I. Patented NOV" 1921.

openings, the Walls of which are enlarged ti) iorm bearings 17,*for the bearing extensions 18 of the spllt ring. The adjusting ring has end lugs 1 9, mounted toslide in. guideways 20 on` the `inner vsurface of the housing', the arrangement'of the guideways admitting of d1ametr1c movement but precluding rotative movement of the adjusting ring. A bracket 21 is secured to the adjusting rin-g, revolubly l supporting an adjusting screw 22,.-having threaded engagement with 'a bushing 23 yin vthe housing. The screw 22 4has suitable'operating means 24 beyond the housing. `f The valve 4 is formedxwith longitudinallying at the outer'end of the valve-'With .pipe

with the cylinder ports 7, has .diametricallyopposed-chambers 29 and 30 form'echwvith an intervening partition `31. The chambers nication With the cylinders through the` extending channels 25 and 26, cominunicati j connections 2'?` and 28. Thefvalve' in line ports 7, as Will be understood Without further explanation. v The secti'onso'f the split ring may be provided'With lugsv 32, for impartingv rotation .to said r1ng 1n the starting of the trans-A4 mission from rest. As soon as' themotion is such as-to generate the centrifugall foi'ee necessary tofhold the pistons -against the disks 10, the re'lativepositions of the cylinder bodyand split rings Will be automatically assumed and maintained.

The shaft extension 8 of the cylinder body 90 manner; and in operation following the is to be positively driven in any suitahle adjustment of the split ring by means of theadjustingring, to secure the desired eccentriclty, the pistons are reclprocated forl the pumlping action. The outer ends of the plstons are closed by' .being` held against the vdisks l0 largely through the centrifugal force developed; by the rotative action of. lthe parts. i t openings 14 therethrough to permit accurate 'finishing of the seats for `the disks.

The split-ring sections are -held slightly separated, as 'previously' described, to therebypermit an oil leakage into the yadjusthave'openings or oil ducts leading thereto,

.as indlcatedatl. .The bearings will be 1.0 l l, by the action of the pump as needed. 'f

, 'subject to automatic forced lubrication during operation, as the centrifugal force will compel the leakage to find its Way to the bea'rmgs. A slight leakage will occur between the disks l0 and the ends of the'pistons. This not only insures perfect lubrication here, but` provldes yan ,opportunity to expel the air froml the motive fluid. The

leakage oil collecting in the housing, asf-described, will be drawn back into the system v l`)isre,fg;arding the friction between the disks" 'l and the pistons, there is no side thrust .on the pistons, and .hence Wear incl- V dent to side thrust is avoided.

Having thus described 'my 1nve`nt1on,

' 1. A uid transmission, including ahousl ing, a cylinder body rotatable therein, hollow pistorisoperatable in thescylinders, a stroke impelling ring provided with disks to provide piston closures under centrifugal the rotative axis of the ring relative 'to that 42; A urd transmission,includinga hous- I ing, a cylinder body rotatable therein, hol- 'l y low pistons operatable `in the cylinders, a,"

stroke impelling ring provided with disks constituting piston closures under centrifugal force, means for'ei'ecting forced lubrication, and means for-adjusting the ring.

3. A fluid transmission, including a Vhouslng, a cylinder bo'vdylnounted for rotation therein, plstons operatable in the cylinders,

a stroke impelling -ring, means for utilizingleakage'for effecting'forced lubrication, and meansv for adjustingthe ring.

'4. -A fluid transmission comprising a housing, a `cylinder body rotatable therein,\

a valvel in the housing on Which said body is rotatably mounted, hollow pistons operating in said cylinders, a stroke impellingring encircling the body, disks secured in said rlng to f orm closures for the pistons under the developed centrifugal force, an

adjusting ring in which theimpelling ring is rotatably mounted, means for 'adjusting said ring to change the rotative axisof the impelling ring relative to the body, the impelling ringl permitting leakage therebeond, and a collection reservoir in the -.hous' ing for such leakage and from which'I fluidmaIy be restored tb the system.

'testimony-whereof -I aiix my signature.

' WALDEMA F. MAYER. 

